The way Kindred gets marks feels totally out of your control.
If the enemy jungler is a stronger jungler than you and/or has a faster clear, you can't get marks from their jungle. If they're actually farming appropriately, you'll never get the chance to claim a mark. If you fall behind, going into their jungle isn't an option.
If your laners push up, you can't claim marks from lanes, either. You rely on your teammates to bait the enemy into a gank, and if your teammates suddenly let's the lane push as you choose them for a mark, they know what's up. A smart player will play safer.
I get that their marks aren't necessary, but getting them after Scuttle depends on your enemies making mistakes, not your ability to make plays.